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Question

The production of which hormone makes us sleepy


A

Calcitonin

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B

Epinephrine

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C

Norepinephrine

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D

Melatonin

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Solution

The correct option is D

Melatonin


The pineal gland produces a hormone called melatonin. The production of melatonin is high at night and low during the day. When the level of melatonin increases we feel sleepy and when it decreases we wake up.


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